RC2_cfb64_encrypt
RC2_cfb64_encrypt(in, out, (long)chunk, &((EVP_RC2_KEY *)ctx->cipher_data)->ks, ctx->iv, &ctx->num, ctx->encrypt);
LCRYPTO_USED(RC2_cfb64_encrypt);
LCRYPTO_ALIAS(RC2_cfb64_encrypt);
void RC2_cfb64_encrypt(const unsigned char *in, unsigned char *out,
RC2_cfb64_encrypt(rt->in, out, rt->in_len * 8, &key, iv, &remainder, 1);
RC2_cfb64_encrypt(rt->out, out, rt->out_len, &key, iv, &remainder, 0);